LCM: Locally Constrained Compact Point Cloud Model for Masked Point Modeling - Zha, Yaohua; Li, Naiqi; Wang, Yanzi; Dai, Tao; Guo, Hang; Chen, Bin; Wang, Zhi; Ouyang, Zhihao; Xia, Shu-Tao (Advances in Neural Information Processing Systems, 2024)